diff options
Diffstat (limited to 'drivers/soc/qcom/qcom-geni-se.c')
| -rw-r--r-- | drivers/soc/qcom/qcom-geni-se.c | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/drivers/soc/qcom/qcom-geni-se.c b/drivers/soc/qcom/qcom-geni-se.c index fe666ea0c487..7d649d2cf31e 100644 --- a/drivers/soc/qcom/qcom-geni-se.c +++ b/drivers/soc/qcom/qcom-geni-se.c @@ -321,6 +321,30 @@ static void geni_se_select_dma_mode(struct geni_se *se) writel_relaxed(val, se->base + SE_GENI_DMA_MODE_EN); } +static void geni_se_select_gpi_mode(struct geni_se *se) +{ + u32 val; + + geni_se_irq_clear(se); + + writel(0, se->base + SE_IRQ_EN); + + val = readl(se->base + SE_GENI_S_IRQ_EN); + val &= ~S_CMD_DONE_EN; + writel(val, se->base + SE_GENI_S_IRQ_EN); + + val = readl(se->base + SE_GENI_M_IRQ_EN); + val &= ~(M_CMD_DONE_EN | M_TX_FIFO_WATERMARK_EN | + M_RX_FIFO_WATERMARK_EN | M_RX_FIFO_LAST_EN); + writel(val, se->base + SE_GENI_M_IRQ_EN); + + writel(GENI_DMA_MODE_EN, se->base + SE_GENI_DMA_MODE_EN); + + val = readl(se->base + SE_GSI_EVENT_EN); + val |= (DMA_RX_EVENT_EN | DMA_TX_EVENT_EN | GENI_M_EVENT_EN | GENI_S_EVENT_EN); + writel(val, se->base + SE_GSI_EVENT_EN); +} + /** * geni_se_select_mode() - Select the serial engine transfer mode * @se: Pointer to the concerned serial engine. @@ -328,7 +352,7 @@ static void geni_se_select_dma_mode(struct geni_se *se) */ void geni_se_select_mode(struct geni_se *se, enum geni_se_xfer_mode mode) { - WARN_ON(mode != GENI_SE_FIFO && mode != GENI_SE_DMA); + WARN_ON(mode != GENI_SE_FIFO && mode != GENI_SE_DMA && mode != GENI_GPI_DMA); switch (mode) { case GENI_SE_FIFO: @@ -337,6 +361,9 @@ void geni_se_select_mode(struct geni_se *se, enum geni_se_xfer_mode mode) case GENI_SE_DMA: geni_se_select_dma_mode(se); break; + case GENI_GPI_DMA: + geni_se_select_gpi_mode(se); + break; case GENI_SE_INVALID: default: break; |